Mold



:Sept. 13, 1932. w. A. HYLAND MOLD Filed Jan. 19, 1931 3 Sheets-Sheet 1 Sept. 13,1932. w. A. HYLAND 1,877,323,

Filed Jan. 19, 1931 s Sheets-Sheet 2 Sept. 13, 1932. w HYLAND 1,877,323

HOLD

Filed Jan. 19, 1931 3 Sheets-Sheet 3 Patented Sept. 13, 1932 H me-STATES:

P NT we 1 WILLIAM ArI-IYLAND, or EAsrr' MOLINE, ILLINoIs, Assrenon r banana 'o'oMPANYf a I a or MoLInn-ILLInoIs, A ooRroRA'rIoN onrt mors p mom) i Application filed January "19, 193 l"S eria1 1 To.509,582.

The present "invention relates to an improved method of and means for constructing wheels and is more particularly directed to a mold forcastin g hubs thereon. This mold is best adapted for casting the hub of the common type of spoked wheel most generally used in'connectio'n withagricultural implements, although the mold can be utilized for V casting the hubs of any type of wheel where in the spokes are initially assembled to the rim andthe hub cast between thesu'spended inner ends of the spokes, embedding the lat ter therein.

Intlie fabrication of wheels of this type, it has been the customary practice to-provide a sectionalized metal chill comprising two halves of a ring, for forming the" outer con tour of the hub between the two sets ofspokes,

. but, a chill of this kind could notbe utilized to cast scallops on the portion of the hub between adjacent spokes nor between the two sets of spokes. 'This difficulty is encountered for the obvious reason that the divergence of a the adjacent spokes in each set would necessarily require scallops diverging from the hub in line with each of the respective spokes, from which it is evident that the half-sectional metal chills could not be radially removed from the hub. Heretofore, in order to cast scallops on the hub for encasing the'ends of the spokes, the practice hasbeen to provide a circular sand core which is disposed substane tially centrally between the two sets of spokes and between sectionalized metal chills. After casting the hub, the sand coreis broken away,

allowing the sectional chills to be moved axial ly inwardly to clear the scallops, and then ra dially from the hub to be removed from be tween the spokes. 40-

This method of casting the hubs is not very satisfactory because, for'one reason, althougha considerable portion of the mold'comprisingthe metal chills can be used repeatedly,- every which, both in setting up and disassembling the mold, req 'iiresmuch time and adds'to the cost of fabricating the wheels.

One of the main objects of the present iii-- vention is to eliminate the use of the heretofore existent sand core from between the two chills, and to provide a mold comprisingsec tion'aliZed metal chills capable of casting a hub having scallops thereon, with the ends ofj the wheel spokes embeddedinthelscallops.

Another ob ect of thepresent invention is to so dlvlde the chills that minimum numher of inner chills are used to complete the mold between the twoysets of spokes, The number of chills in the present construction is limited to a singleipair forffo'rming the mner contours of the scallops cast about the ends of the outer set of spokes',jand to one half as many "chills as there are spokes in one. set on the wheel forfforming the inner contours of the scallopscast about theen'ds of the inner' set of spokes, or vice versa." The foregoing is strictly'true for any wheel havingan even numberof spokes, If" a wheel has anoddnumbe'r'of spokes the num ber of chills for formingtheinnercontours of the scallops castabout'the'e'nds of this set of spokes will'be equal toa chill for each pair of spokes'a's is thecase where an even number of spokes are present, but such a mold will require one more chill for at commodating inaftermore fully described; e

A further object of theinvention is to join the two sets oflsectiona'lized chills of the mold in such a manner that one set will abut 'the'other set on "a beveled surface; to permit each of the'chill membersof one set to be drawn radially outwardly without in-'1 terfering with the scallopsf'formed by those chill members nor withthe corresponding spokes. i I T f 1 Further objects and advantages will hereinafter appear in the" following jdetaileddescription' of the m old', refere throughthe axis of the mold, f r

Figure-23 is a plan'view takensubstantially along'gline'2l-2 of Figure" 1, withthecope removed therefrom Figure 3 is a plan sectional'viewtak'en sub-y stantially along the line of Figure 11 looking'in the direction of the arrows;

Figuret is a perspective view offl the mold nce'beinghad'to" V V the odd spoke, as willfbehere-I V with the cope and drag removed, illustrating the removal of one of the inner chills from the mold;

- Figure illustrates the finished hub after themold has been removed therefrom;

Figure 6 is, a perspective view of one of i I the inner'chill membersof themold which is utilized fonforming the inner contours of d the scallops cast about the ends of the inner chills 23a.

set' of spokes Figure 7 is a of the chill members which is disposed adjacent the chill members of Figure '6, and

utilized for forming the inner contours of the scallopscast about theends of the outer set of spokes; 7

' spokes and of the outer faces of the hubs.

Figure 81s a perspective view, ofone of' the end'chill members that is-used for forming the outer contours of the scallops which arev cast about the. ends of the outer, set of Figure 9 is a view corresponding to that shown in casting a scalloped hub on a wheel having an odd number of spokes. p I

7 Referring now to Figure 1, the mold is shown-as assembled about the suspended inner ends of the spokes which are initially assembled with rim 10 of a wheel prior to the pouring of the hubmetal, The mold is of a general type comprisingcope and drag 11 and 12, respectively, preferably of metal, having sand cores 13 and 14, respectively, dise posed therein for forming the end portionsof the hub. The purpose of using sand cores such as 13 and 14 to form the end portions of the hub is to obtain softer surfaces at these points andthereby facilitate the, machining The use of metal chills in. place of thecores 13 and 14 i would produce a hard surface which is more difiicult to finish, although, if desired, metal chills can be substituted forthe sand co-res depending upon the particular needs of. the

. wheel manufacturer. A core15, preferably of sand, extends centrally'through the mold and is so shaped as to form the interior axle opening of the hub. One end of the core 15 is seated in the lower sand core 14 within the recess 16, and the other end thereof is held within the opening 17 of the upper sand core 13. i v

Disposed between the cope and drag and encircling the central core member. 15 are a number of sectionalized chills, there being three sets for the composition of the balance ofthe mold. It is obvious that the total number of chills will vary with the number of spokes, but for the sakeof illustration awheel having a set of six outer spokes 21 and a set of six inner spokes 22 is'used as av general;

example; "In a wheel having an even'nu'mber of inner and outer sp0=kes,jchill section 23,

is preferably composed of a number of chills 3 232a equal to oneshalf the number of spokes Figure 2,, illustrating amold for in one set. Therefore, in a wheel as shown 1n Flgures to 5, havlng SlX spokes 1n each set, since the number of chills are one-half the numberof spokes in a set, it will be seen that three chills 23a are employed' Adjacent chills23a are two half-circular chills 244;

comprising the 'second chill section :24 of the mold, the latter members being likewise dis-1 osed between the two sets of spokes, as are The ,third chill section 25 comprises a plurality ofchills 25a, and although this section is illustrated as made up of a number of chills, a single circular chill could v ibe utilized. The objection to a single chill, 7

however, is that it may be subject to breakage andfor this reason it is desirable to divide this chill section into a plurality of chill pieces such as 25a, 7 The latterchill members complete the mold and fo-rm the contour ofi thehub between the outer setof spokes and;

the sand core :14.

Referring now to Figure 5, it to benoted tion of the individual spokes, and the aforementioned difficulties heretofore encountered resided incastingthe radially disposed scallops. To enable the scallops 30 and 31 to be cast, and to enable the chills 23 and 24 to be removed from between the outer and inner sets of converging spokes after the casting ofthe hub, a parting surface 32,,preferably conical, is provided between the plurality of abuttingchill pieces23a and 24a comprising the two chillse'ctions 23 and 24 of the mold, respectively: This is accomplished: by pro viding the bottom faces of chills 23a with beveled faces 23? slopingdownwardly and outwardly from the center of the mold, and

by providing chills24a with complementary sloping surfaces 246 for cooperating with the surfaces 23b, .of chill members 23a, as best illustratedin Figure 1. The angle of theco- 7 operating slopingsurfaces with respect to the axial-gentler line of the hub, is determined by the angle that any one of the inner spokes makes with the same axial center line and must in all cases be equal'tothe spoke angle, or preferably, should be somewhat greater .as shown in the mold illustrated. With a-Z-parting plane as above described, it;

is seen that after the hub has been poured and'the cope l1 removed, thev chill members 23acan be readily moved radially and downwardly away from the rest of the mold into the space between the outer and inner sets of spokes,tand likewise away from scallops- 3l a d spokes 22, clearing the latter mem- Ill.

accomplishing the removal of: chill section 23, ,is' the manner in which this section is divided, having reference to the plurality of;

chills 23a. Referring to Figure 6, illustrat ingone of the chills 23a, it is tovbe noted that this chill is of a peripheral length equal to one-third of the circumference of chill section 28. Obviously, this is only true when six spokes are present, since, as hereinbefore 3 stated, the number of chills 23a is determined by the number of spokes. However, regard less of thenumber of spokes, each chill 23a is made to straddle one spoke centrally and to extend to the midpoints of the next adj a cent spokes, as will be apparent from the radially extending recesses or semi-circular spoke openings 230 and 23d which receive th spokes. The recesses 23c and 23d form in conjunction with corresponding recesses carried in the cope 11, the openings through which the spokes 22 extend into their .deslgnated positions within the mold. The spokes when properly positioned form closures for these openings thereby preventing the molten metal from escaping from within themold. Directly in line with the recesses or spoke openings 230 and 23d, andextending radially from the virtual axial center point of chills 23a, are indentations orrecesses 26 and 26a i: that are adapted to form the inner contours of the scallops 31 for the inner spokes. The indentation or recess 26 is centrally located in chill member 230 and will completely form the inner contour of one of the scallops, while eachqof the remaining recesses 26a are adapted-to form one-half of the inner contours of the next adjacent scallops since the dividing line between-the several chills-23a bisects the U end recesses 26a. Obviously, the end recesses 26a of the next adjacent chill members will form and complete the balance of the inner contours of the scallops last referred to, etc. This'is best illustrated in Figure 2, wherein I the inner ends of two of the spokes have been broken away to clearly show the relationship of the semi-circular openings 23c and 23d, as wellas the recesses 26 and 2604. Therefore,

byhavingeach chill straddling aspoke and- A extending to the midpoints of the adjacent a spokes, any one of the chills 23a may be removed radially outwardly, after the mold has been poured, along the particular spoke which it straddles and likewise along the completed scallop which is aligned with that spoke. This action naturally draws the spoke openings 23d and recesses 26a away from each of the adjacent spokes and scallops inasmuch as the latter diverge from the spoke straddled by member 23a.

From the foregoing description it is seen spokes.

that each membe'r 23a on being, removed, drawn outwardly'from. the mold along the line of a spoke straddled thereby. Likewise, the same chill member is moved substantially downwardly or axially (as viewed inFigures- 1 and 4:). by reason of the beveled surfaces 28?) at the bottom thereof, the latter move ment" being along an angle at least equal to the angle'defined between thespoke' and the wheel'axis and operating'to draw the chill laterally into the space between the two sets of spokesand away from the straddled spoke.

This double action permits the chill to be easily removed fromtheymold and subsequently from'between any two. adjacent After the chill members 23a have thus been removed, the balance can also be readily disassembled;

Referring to Figure 7 illustrating one of the chills 24a, it is to be noted that this member also contains semi-circular spoke openings 24c and recesses 240? in alignmenttherewith, the latter being adapted 60 1501111 the inner contours of the scallops for the outer set of spokes. Chill member 2 10 comprises one-half of the chill section24 since the latter need only consist of two pi ces, although it mayconsist of more and may be divided in any other desired manner, Section '24 may be formed in only two pieces by reason r of the fact that the chill members2ea there of can be moved axially away'froin the scallops 30 and spokes 21 which "are embedded of the mold therein, after chill members 23a have been withdrawn from the in-old.

Cooperating with chill'members 24a are chills 25a which have been: hereinbefore referred to. Chills 25a contain semi-circular spoke openings 25b and recesses 250, both forming the pockets into which the ends of the outer spokes are nested and in which the outer surfaces of the scallops 8Ov are formed when chills 25a are made to abut chills 24a in the assembled mold. Chill section 25 is disposed within an opening 35 of the drag 12 and is seated adjacent the sand core 14;

Having described the mold and its com-y v ponent. parts, the assembling and disassem bling thereof is accomplished as follows The drag 12is placed on any suitable sup port or gauge table'havlng means thereon for centeringthe'drag' with respect to the rim lOcontaining the free ends of the spokes,

so that the hub will be cast with its shaft opening in the exact center of the wheel.

Sand core 1 lisnext dropped into place within the drag, followed by the chills- 25a. It" is to be noted that the drag is provided with pairs of radially extending ears 10, and links or clamping arms 36 are pivotally carried on bolts 37, the latter being sup-. ported by'ears 40. "At the present stage of assembly, the links are droppeddownwardly,

or'horizontally, depending on the type of table used for supporting the mold and wheel finished rim. The purpose of the links or clamping arms will presently be referred to. One of the chills a has a projecting lug 38 which engages within the opening 39 in the drag. In

also be disposed in certain fixed positions with respect to the drag. From this it is apparent that the spokes of the wheel rim will I g be disposed in such a manner as to allow the clamping arms 36 to swing upwardly between the spokes without interference.

When the drag is thus far assembled, with core 14 and chills 25a placed therein, chills 23a and chills24a are then nested around the free ends of the'spokes, and into the respeci in the assembled mold. The wheel is then obvious that the wheel laced upon the gauge table so as to bring the chills disposed about the free ends of the spokes into the mold centrally: of the circularly disposed upstanding fingers 41, and with the spokes extending radially between said fingers. During the. latter step, it is rim may be rotated slightly to bring the outer spokes 21 into 14, as best illustrated in Figure 1.

proper alignment with the spoke openings 25?) in chills 25a. Spokes 21 will then enter the openings 25?) permitting the mold to be properly closed along the partingtline between chills 24a and 2564. At this stage the core 15, which forms the axle opening, is placed into the mold, the lower=end thereof being received by recess :16 in the sand, core The cope 11 is then placed over chill members 23a with the spoke openings contained therein in register with the inner set of spokes, and sand core 13 is finally inserted into recess 29 within copeill and about the upper end of the central core 15. The mold is thencompletely assembled, and the final step is to clamp the several parts of the mold..- This is accom .plished by swinging the clamping arms 36 4 into vertical position between pairsof radially extending ears 42 carried by cope 11, the

V latter having been so located over the spokes in assembling the mold as to cause ears 42 to be in direct alignment with the ears 4Giofthe dragand consequently with links or clamping arms fi. The clamping arms are provided with openings through which suit-.

able wedges 51 are inserted for the purpose of clamping the several mold parts firmly together, preparatory to the pouring of the mold. The molten metal is poured into the mold throu h a suitable gate 43'which is formed int e central core member 15, and which is aligned with a cutout 46 in core member 13. V

After the hub has been cast and the metal has cooled, .wedges 51 are withdrawn to re lease the clamping arms 36. The wheel is then lifted away from the drag to free chill members 23a-and 24a from within the upstanding fingers 41 of the drag. The wheel and the parts of the mold retained thereby are easily removed from the drag inasmuch as i the inner surfaces of the fingers 41 are beveled towards the open side of thedrag, and the outer surfaces of chill members 23wand 24a; are correspondingly beveled. Chills 25a will remain within the drag with the sand 'core 14, while the central core 15 is retained with l reason of the beveled parting line 32 dividing chill members 2301. and 24a, and also'due to the fact that each chill member-23a straddles only one spok'eas hasbeenhereinbefore' more fully referred to. Aftermembers- 23a have been taken out between the spokes, chill members 240 may be displaced axiallyaway fromthe scallops formed on thehub thereby, clearing the same, and being then removed from the space'between the inner and outer sets of spokes. Obviously chills 23a, and.

Chill members'23'a may then be easily moved axially and radially away from the hub and its scallops by V tive positions that they subsequently occupy 24a may readily'be' dislodged by rappingthe' wheel afterit is lifted from the drag and the cope is removed.

In order to prevent the formation of an outwardly projecting fin along the parting line 32 during the casting of the hub, the

internal diameter of the chill 23 is preferably made slightly less than the internal diameter of the chill 24, see Figure 1. The

result of the foregoing is to form a small beveled shoulder 55 between the upper portlon of the hub H formed by chills 23a, and

the lower portion thereof formed by chills 24a, with the cope end of the hub of smaller diameter.

alignment of the upper and lower chills,

which would obstruct axial movement of:

chills 24a, is prevented, thereby assuring free axial movement of the chills 24min disasw mold ,after'the same has been sembling the cast,

When 1t becomes necessary to cast a on a wheelhaving an odd number of spokes the process will be exactly the same. The only variation in the constructionof the mold will be in the chill section 23. This section tend between any two adjacent spokes, reach v ing from the mid-point of one to the midpoint of the other as best illustrated in Fi ure 9.

In this manner the formation of an ob ectionable shoulder, due to slight mis- While I have shown what I regard to be the preferred manner ofpracticing my in- Iventionfit-will be Understood that .such is merely exemplary and that other practices and constructionsmay-be adopted within the broader aspects ofthe invention;

WVhat I claimzis: I 1

1: In a moldfor casting a scalloped hub on a wheel havingits outer and innersets'of spokes initially assembled withthezrim, and wherein the free ends of Sfit'lClfiSPOkGS'fiIB adapted to be embedded-within the scallops of the finished hub, the combination of acope,

core, said'first, andsecond means-cooperating toisupport-the free'ends ofone "set of spokes in fixed relation within the mold cavity, and

. a third means seated upon said second means and disposed about the center core, said third means cooperating with said cope to support i the free ends of the otherset of spokes in fixed relation within the mold cavity, said first means and said cope being adapted toform the contour of the laterally outer extremities of the scalloped hub, respectively, said second and third means cooperating to form the outer contour of the portion of the scalloped hub that extends between the two sets of spokes.

2. In a mold for casting a scalloped hub on a wheel having its outer and inner sets of spokes initially assembled with the rim, and

wherein the free ends of saidspokes are" adapted to be embedded-within the seallops of the finished hub, the'combination of a cope, a drag, a center core extending between said cope and drag, a :lower' chill member carried by said drag and disposed about saidcenter core, a first intermediate sectionalized chill mounted adjacent said lower chill member and disposed about said center core, the aforesaid lower chill anember and said first intermediate sectionalized chill cooperating 'to support the free ends of one set of spokes in fixed relation within the mold cavity, a second intermediate sectionalized chill seated upon said first sectional ized chill and disposed about said center core, said second sectionalized chill and said cope cooperating to support the free ends of the other set of spokes in fixed relation within the mold cavity, said lower chill memberand said cope being adapted to form the outer contour of the extremities of thejscalloped hub, and said first and second sectionalized chills cooperating to form the outer contour of the portion of the scalloped hub that ex tends between the two sets of spokes] 3. In a mold for casting a scalloped hub on a wheel havingits laterally outer and inner sets of spokes initially assembled with the rim, and wherein the free ends of said spokes said center core, a firstintermediate sectionali-zed chill mounted adjacentsaid lower chill theaforesaid: lower chill member and said intermediate sectionalized chill havingcooper- :are adapted to "be embedded within the scal- .lops of the finished hub,pth'e combination-10f 1a cope, a cdragpacenteri core extending be- --twee'n said cope and drag, a lower chill mem- .berca'rriedby said dragjand disposedyaboutm V in'ember and'disposed about said center core,

ating recesses to receive the radially inner 1 ,zendsof one setxot spokes'in fixed .relation within the mold cavity, a second intermediate sectionalized chill seatediiupon said first sec- :tionalized chill and disposed about saidcenter core, said second sectionalized chill and" saidgcope having cooperatingrecesses to re ceive the radially inner ends ofthe. other set ,otspokes in fixed relation within the. mold oavity,' -and.means carried by said drag to vretain saidfirstandsecond sectionalized chills -1I1 fixed relatlontosaid center core.

4. Iii-amen for, casting scallopedihub on a. wheel having itsfouter, and inner setsiof spokes initially assembled with the-rim, and

wherein the free ends, Of vsaidspokes are adapted to be embedded Within said scallops,

the-combination ota cope; a drag, a center core extending between said cope and-"drag,

a lower chillcarried by;said -dragand dissaid, lower chill to receive the. free ends of one of the sets of spokes in fixed relation within the mold cavity'and theoth'erset of sectionalized chills; cooperating with said-cope to other on-aninclined junction line,"the incliposedabout said center-core, and twosets of intermediate cooperatingsectionalized chills, .oneset being seated upon said lower chill and abouhsaid center core and cooperating with nation; of which,'relative=to the axialcenter line of the wheel,is.-at least as greatras the j inclination of the spokes in one'set of spokes relative to said axial center line. 3

- 5. In a mold for casting-a scalloped hub on a wheel having itsyouter and inne'rsets of a V spokes initially assembled-with. the rim and I wherein the, free ends of saidspokes are adapted to beembedded within said scallops, V V

the combination ofa cope, a drag, alcenter coreextending between said cope and drag,

a lower chill mounted in the drag and dis.

posed about said center'core, and 'anadjacent pair of cooperating sectionalizedchills seated upon said lower chill in spaced relation to said centercore, one of said' sectionalized chills and the copehaving cooperating sets of spokes in fixed relation within the mold cavity, said sectionali'lzed hill having abutting engagement with sai cope on a im to position the free ends of brie tot the i2 support the free, ends of the other set of "other of'said sectionalized chills having i'imeanscooperating with said lower chillto position the free ends of the other set of spokes in'fixed relationwithin the mold cavity' and having abutting: engagement with said lower chill on a partingsurface lying in the transverse plane of'the centers of'said other set'of spokes, said pair of sectionalized chills 1O adjoining eachotheron aniinclined junction l'axial center line of said wheel, is at least as V greatas'the' inclination of any spoke in one of the adjacent sets of spokes relative to the line the inclination of which, relative to the .same a xial' center line.

- 6. In a mold for-casting a scalloped hub, in a wheel having its outer and inner sets of "spokes initially assembled with the rim, and wherein the free ends vof said spokes are adaptedto be embedded Within said scallops,

the combination ofa cope,"'a drag, a center core extending between saidcope and drag, a lower chill mounted in said drag and dis posedaboutsaid'center core, and two sets of i sectionali'zed' chills disposed about the center core and hav ng-meanscooperating w th said cope and said lower chill member, respectivev 1y, to receive the free ends of the'inner and outer sets ofspokes within the mold cavity,

oneof said-sets comprising'at'least two chill pieces and the other set comprising at'least half as many chill'pieces as the number of spokes in one set of spokes, thechill pieces of one set being adapted to join the chill pieces of the other set on an inclined junction line the inclination of which, relative to the axial centerline of-said wheel,'-is at least asgreat as the inclination 0":f the'spokes in oneset of spokesrelative tosaid axial center line.

v 7. In a mold for casting a; scalloped hub 011 a wheel having its outer and-inner sets of 1 spokes initially assembled with the rim,

' and wherei'n the free ends of said spokes are "adapted to be embedded within said scallops,

the combination o f acope, a drag, a center core extending between said. cope anddrag,

a lower chill member disposed about said center core-and supported on said drag, a pair of 'lntermediate'chill sets each comprising a pluralityof chill pieces supported upon saidlower-chill inember in spaced relation to said center core, said cope cooperating with-the first of said'intermediate chill sets to receive the free ends of one set of spokes infixed relation within themold cavity and having-means engageable with the separate,

' chill pieces of said first intermediate chill to prevent axial displacementof said pieces, the second of said intermediate chill sets cooperatlng with said lower chill member to spokesin fixed'relation within the mold cavity, saidgfirst' and second intermediate chill sets having abutting engagement along a downwardly and outwardly inclined junction-surface to 'allowthe removal of said 'ly of the wheel.v

clear the spokes.

mold is locked, and locking means carried by said drag'and releasably connected with said .cope to positively lock all of's'a'id chillipieces and chill: members against separation axial- In, a mold for casting a scalloped hub ona wheel having its outer and inner sets of spokes initially assembled with the rim, and wherein the free ends of saidspokes are adapted to be embedded within saidscallops, the combinationof a; cope, a drag, a center f core extending between said cope and drag, a lower chill member supported -concentrically to said center coreby said drag, a pair of intermediate chill setseach comprisinga plurality of chill piecessup'ported upon said L lower chill member concentrically to said center core, said cope cooperating with one of said intermediate chill sets to receive the free ends of one set of spokes in fixed relation within the mold cavity and having means engageable with the separate 'chill'pieces of said one chill set to prevent'radialdisplacement of said pieces, thesecond of said intermediate chillsets cooperating with said lower chill memberto receive-thefree ends of the other-set of spokesin fixed relation within the mold cavity, said chill sets having abutting engagementalong a downwardly and outwardly inclined junction surface to allow removal of said one chill set and 7 whereby the chillpieces of said one chill set are adapted to hold the chill pieces of the second set against radial displacement, look ing means including arms carried by said drag and releasably connected with said cope -to positively look all of said chill elements against separation axially of the wheel, and cooperative means carried by said lower chill member'and drag respectively for positioning the mold parts and wheel spokes, so as to 'allowthe arms of said locking means to .9. Ina mold for casting a scalloped hub on a wheel having its outer and inner sets of spokes initially assembled with therim, and

wherein the free ends of said spokes'are adapted to be embedded within the scallops of the finished hub, the combination, of a cope, a drag, a center core extending between said cope and drag, a lower chill supc ported by said drag concentrically with said "chills and whereby the chill pieces of said first'intermediatehchfll are adapted to hold' -'.the chill pieces of the-second.intermediate :cliill' :against radial displacement when the the other set on an'inclined'junction'line the inclination of which, relativeto the. axial centerline of the wheel, is at least as'greatas the inclination oft-he spokesin one setlrelav tive to said axial center line, said cope hav ping'openings disposed'in registry with corresponding openings contained in the chill pieces of said upper intermediate chill set to receive the free ends of one set of spokes in fixed relationwithin the mold cavity, and said lower chill having openings disposed in registry with corresponding openings con tained in the chill pieces of said lower intermediate chill set to support the free ends of the other set of spokes in fixed relation with in said mold cavity. 7

10. In a mold for casting a scalloped hubona wheel having its outer and inner sets of spokes initially assembled with the rim,

and wherein theiree ends of said spokes areadapted to be embedded within the scallops of the finishedhub (the combination'oi a cope, a drag, a center core extending between sald cope and drag, alower Clllll suppo'rtedby sald drag concentrically with sald center; core, a lower intermediate chill set supported adjacent said lower chill, and an upper intermediate chill set' supported be tween said cope and said lower intermediate chill set, each of said intermediate chill sets comprlsmg a plurality of chill pieces with the pieces of onerset adjoining the pieces of the other set on aninclined junction line the inclination or. which, relative to the axial center line of the wheel, is at least as great as the inclination of the spokes in one set relative tosaid axial center line said cone beam 7 .l b

openings disposed in registry with corresponding openings contained in the chill pieces of said upper intermediate chill set to receive the free ends of one setof spokes in fixedrelation within the mold cavity, the chill pieces of said upper intermediate chill set having recesses formed therein in direct alignment with the cope openings for cooperating with said cope to form the scallops about the ends of the spokes supported between said cope and upper intermedlate Clllll, saidlower chill set havlng openings disposed in registry with corresponding openings contained in the chill pieces of said lower intermediate chill to receive the free ends of the other set of spokes in fixed rela tion within said mold cavity, said lower chill and the lower intermediate chill pieces being provided with recesses formed thereinin direct alignment with their respective spoke openings to form the scallops about the ends of the spokes support-ed between said lower chill and the lower intermediate chill pieces.

11. In a mold for casting a scalloped hub on a wheel having its outer and inner sets of spokes initially assembled with the rim,-

and wherein the free ends of said spokes are adapted to be embedded within said seal-c lops of the finished hub, the combination of a cope,- a drag, a center core extending besaid cope having recesses adaptedto form the otherjend of the scallopedhub, and a second means cooperatmgwlth said copeand said first means to receive the free ends of the, two sets of spokes in fixed .relation with} in the mold cavity with the ends of the spokes in one set disposed in spaced relation to the ends ofthe spokes in .theother set, said secfond means having recesses adapted to. form the contour of the scalloped hubextendingbe tween the two sets ofspokesfand comprising an upper ehill set andalower chill set disposed adj acent' said upperchill set,saidchill sets each having a plurality of chill pieces, each of the chi-ll piecesof one of saidsetsbe-f ing of such a peripherallength as tostraddle one spoke of one set of spokes and to ex:

tend to the midpoint-sot the, next adjacent spokes of that set wherebyeach ofthe latter chill pieces may be radially removed from the mold in the axial direction of the spokes straddled thereby after thehub is cast; I j V 12. In a mold for'casting ascalloped hub on a wheel having its outer and inner sets of spokes initially assembled withthe rim and wherein the free ends of said spokes are adapted to be embedded within the scallops of the finished hub, the combination of a. cope, a drag, a center core extendingbetween said cope and drag, a first means carriedby said drag and having recesses adapted to form one end of the scalloped hub, said cope having recesses adapted to form-the other end ofthe scalloped hub, andlintermediate means cooperating with said cope'and said first means to receive the free ends of the two sets of spokes in fixed relation within the mold cavity with the ends of the spokes in one set disposed in spaced relation to the ends of the spokes in the other set, said'intermediate means having recesses adapted to form the contour of the scalloped hub extending between'the two sets of spokes, said intermediate means comprising an upper chill member and a lower chill member dis- 1 po-sed'adjacent said upper chill member,said chill members each having a plurality of chill piecesadjoining the chill pieces ofthe other chill member on an inclinedjunction surface to enable the chill pieces ofone of said'members to be moved substantially axially of the mold and away from the'adjacent set, or" spokes, each of the chillpieces of said one member'being of a peripheral length so as to straddle one spoke of the adjacent set of spokes and to extend tothe mid-points of the next adjacent spokes of that set to enable the chill pieces ofsaid onemember to be moved substantially radially inconjunction with the aforesaid axial movement thereof,

"whereby the chill pieces of said one member may be removed fromthe mold into the 13, In a mold for casting a scalloped hub on a wheel having-its outer and inner sets of w spokesi nitially assembled with the rim, and

to form one end of the scall movable axially of the wheel after the-hub wherein the free ends of said spokes are adapted to be embedded within said scallops of the finished'hub, the combination of a cope,- a drag, a center core extending between said cope and drag,a first means supportedadjacent said drag and having a surface adapted to form one end of the scalloped hub,

i. said cop ehaving a surface adapted to form the other end of said scalloped hub, and a second means cooperating with said cope and said first means to receive the free ends of the two sets of spokes 1n fixed relation within the mold cavity with the ends of spokes in one set disposed in spaced relation'to' the endsof'the spokes in the other set, said second means having surfaces adapted to form the contourof the scalloped hub extending bee tween the two sets of spokes and comprising two coacting sectionalized chill sets, the chills in one of said sectionalized chill sets being removable from the mold into the space between'the two sets of spokes whereby the balance of the mold may be disassembled after the hub is cast. I i

14. "In a mold for casting a scalloped hub on a wheel having its outer and inner sets of spokes initially assembled with the rim, and wherein the 1 free ends of said spokes are adapted to beembedded within the scallops of the'finished hub, the combination of a cope, a drag, a center core extending between said cone and dragysaid drag being adapted ped hub and is cast, said cope being adapted to form the other end of said scalloped hub and being movable axially of the wheel after the hub is cast, and a pair of superimposed chill sets disposed about'the center core and between i the free ends of'the outer and inner sets of spokes and cooperating with said copeand said drag-to receive the free ends of the two sets ofspokes in fixed relation within the mold cavity, the chills of said sets having surfaces adapted to form the outer contour of the hub extending between said two sets of spokes, one of said sets having a plurality of chill pieces, and the second set having at least two chill pieces, the chill pieces of said first set adjoining the chill piecesof the second set on an inclined injunction line whereby the chill pieces of said first set are movable out of the mold axially and radially of the wheel after the scalloped hub is cast, one of said sets of chillshaving a smaller internal diameter than the other of said sets to allow removal'of the chill pieces of said other set in a direction along the axis thereof, said members projecting radially therefrom and converging outwardly toward each other, said mold c'omprising a cope and a drag to'form the end portions of said unit, and cooperable means held between the cope and the drag and adapted to form theintermediate portion of each comprising a plurality of sections, the

sections of one means being initially movable" axially and radially outwardly of said mold whereby they are moved axially away from said unit extending between said projecting 'members of the latter, sa1d cooperable means one of said members and radially away from i said finished unit, thesections of said other means being thereafter movable axially of the mold away from the other of said members and then movable outwardly of the mold and free of said finished unit.

16. Arnold forcasting a unit having a pair of flange m'embersdisposed in spaced re lation along theaxis thereof, each of said flange members beingprovided with elements formed on their adjacently disposedfaces and extending radially of said unit, said mold comprising 'a cope and a drag to form the end portions of sa1d un1t, and cooperable means held between the cope and drag and adapted to form the intermediate portion of the unit including said'radially extending elements, said cooperable means each comprising a plurality of sections, the sections of one means being of such length as to completely form one of said elements'and to extend to the mid-points of the next adjacent elements, said sections of said one means 'each being movable radially outwardly of the moldv in a direction along the one complete element formed thereby after said unit is cast.

17. A mold for casting a unit having a pair of flange members disposed in spaced relation along the axis thereof, said mold comprising a cope and a drag to form the end portions of said unit, and cooperable chill means held between the cope and the drag and ada-pted to form theintermediate portions of said unit extending between said flange members, one of said chill means having an internal diameter less than the internal diameter of the other chill means, said cooperable chill means each comprising a plurality of sections, the sectionsof said one c0- operable chill means being radially movable out of said mold after said unit is cast.

18. A mold for casting a unit having a pair of flange members disposed in spaced relation along the axis thereof, said mold comprising a cope and a drag to form the end portions of said unit, and cooperable chill means held between the cope and the drag and adapted to form the intermediate portion of said unit extending between said flange members, said cooperable chill means each comprising a plurality of sections, the sections of one cooperable chill means being I radially movable out of said mold after said unit is cast and the sections of the other chill means being movable axially beforethey are removed from the cast unit.

In witness whereof, I hereunto subscribe 10 my name this 30 day of December, 1930.

WILLIAM HYLAND. r 

